Ransom sargent



kRANSOM SRGENT, OF NO'RWIGH, VERMONT.. Letters Patent'lV'm'lOQS, datedNovember 5, 1867.

IMPROVEMENT INROTARY CAM FOR LOOMS.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, RANSOM SARGENT, of Norwich, in the county of Windsor, and State of Vermont, have invented a new and improved Adjustable Rotary Loom-Cam; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming/part .of this specification, in which- Figure 1 is a side view of my improved rotary cam connected with a loom.

Figure 2, a front end view.

Figure 3, a detached .side view.

Figure 4, a side view of the adjustable truck-shaft box detached.

Figure 5, a side view of a single truck or cam-disk detached.

Figure 6, a'p'artial sectional view of a truck detached. l

Similar letters .of reference indicate like parts. c v ,i

This invention relates to a new and use-ful rotary cam for` working the treadles of a. loomto spring the web, and consists of a series of disks or circular trucks attached to a series of shafts which have their bearings in plates or heads secured to a central shaft, the trucks in thesaid shafts being set on pins to be movable and adjustable on their shafts in such manner thatl anyone or more may be made to engage with cams on corresponding treadles for working the heddles, and springing the-'web'to suit the pattern of thecloth to bc woven.

The object of this improvement is to provide the weaver with the means of readily and quickly adjusting 'themovements ofv the treadles, and the springing of the harness to weave various styles of clot-h on the same loom, and this object is accomplished by simply adjustingthe cam-trucks on the truck-shafts to correspond with the treadles, which should be operated to spring. the web as desired, as hereinafter fully described. B y this arrangement there is a great saving of friction and po'wer, and also of oil required for oiling the apparatus in general use. In other respects this improvement introduces great economy in the manufacture of textile fabrics.

A represents the frame of an ordinary loom, to which are attached only tbe-heddles Band the treadles C, for the illustration of my invention, with whichparts it is immediately connected. On the upper side of each l of the treadles is a cam-block, D, with a compound, concave, and convex, or wave-line face, as shown in iig. 1. And-over these cam-blocks, on the treadles, is hung -a centre-shaft, a, on which are circular heads b, outside of the set of treadles; the said shaft being actuated by gear-wheels a a2 from any suitable power. On the face of the heads hare hung truck-shafts c, as many as desired for the work in view. These circular heads b are those usually employed, but in my invention the shafts c are hung in adjustable boxes d, regulated by a set-screw, c, as shown in fig. 4, attached to a segment of the'head b', which is secured to the shaft in any suitable manner. On each of the shafts c is secured a circular cainor trck,E,Awhich`is'held in position ou the shaft by a spring-V pin, g, that enters any one of a. series of holes made in' the shaft, corresponding with the treadlos, so that the' trucks may be shifted readily from one position to another for adjustmentto the treadles, as desired, according to the style of cloth to be woven. .y d i It will readily be understood that the number of triick-shafts, and trucks upon them, may be placed around the cam-shaft a, according to the number ofthe treadle's, and that they may be placed in any desired position to work upon the corresponding treadlesfor springing the web, according to the style of goods being manufactured.

Having described my invention, I claim as new, and desire to secure by Letters Patent'- The rotary loom-cam formed of a contre-shaft, a, provided with heads b', on Athe periphery of :which are hung the truck-shafts c, in the adjustable boxes d, for carrying the adjustable circular cams or trucks E, `tor operate on the cam-blocks D, placed on the treadles C, constructed, arranged, and operating substantially as and for the purposes herein described.

' RANSOM SARGENT,

Witnesses:

ED. M. LEWIS, LEWIS S. Premaman. 

